fix no selection after shift-pagedown/up bugs
fix no selection after shift-pagedown/up bugs

svn path=/trunk/kdelibs/kate/; revision=238204

hlamer/kate,DickJ/kate,cmacq2/kate,hlamer/kate,DickJ/kate,hlamer/kate,hlamer/kate,jfmcarreira/kate,hlamer/kate,hlamer/kate,hlamer/kate,cmacq2/kate,jfmcarreira/kate,DickJ/kate,hlamer/kate,sandsmark/kate,sandsmark/kate,DickJ/kate,hlamer/kate,hlamer/kate,jfmcarreira/kate,cmacq2/kate,sandsmark/kate,sandsmark/kate